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General Information
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Manufacturer
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RDL
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Manufacturer Part Number
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RDL-RUVCA2A
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Product Name
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Rack Up
Series Digitally Controlled Attenuators |
| UPC Code |
813721013453
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Overview
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The RU-VCA2A is a full
featured studio quality dual channel audio attenuator module for
local and/or remote control of balanced or unbalanced line level
sources. Each module can be remote controlled from a single or
multiple locations
Rear panel terminals provide flexible control options using a
variety of RDL remote controls or OEM equipment.
Audio levels are controlled in 0.5 dB steps using noiseless zero
crossing digital attenuators for optimum reliability, precise
tracking and long term click free service
Exceptional wide band low noise performance makes the RU-VCA2A
suited to level adjustment in the most demanding applications.
Rear panel inputs and outputs may each be wired balanced or
unbalanced.
The RU-VCA2A powers up in one of two operating modes set by a rear
panel switch
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Features
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- Local or remote audio level
control
- Mono or stereo attenuation
- Noiseless zero-crossing
adjustment steps
- 96 dB attenuation range in 0.5
dB steps
- Data bus provides adjustment of
multiple modules
- Multiple remote control
locations possible
- Precise level tracking on each
channel
- Balanced or unbalanced line
inputs and outputs
- Adjustable ramp up and down
rates
- Controllable using various RDL
remote controls
- Selectable level control
options, Pushbuttons (Internal or External), Momentary pulses
(External and Rotary Encoder), 0 to10 Vdc or 10 k Ohms
potentiometer
- Selectable power-up return to
PRESET or LAST level
- Selectable MASTER/SLAVE mode for
control expansion
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Pictures
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Specifications
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| Inputs
(2) |
Greater
than 10 kOhms Balanced bridging, or Unbalanced, line level
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| Frequency
Response |
10 Hz
to 50 kHz (+/- 0.5 dB)
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THD+N
|
Less
than 0.005 percent (20 Hz to 20 kHz)
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| Gain |
Adjustable
from unity to less than –96 dB
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| Step
Size |
0.5dB
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| Headroom |
Greater
than 18 dB (above +4 dBu)
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Residual
Noise
|
Less
than -90 dB (referred to +4 dBu at unity gain)
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| CMRR |
Greater
than 65 dB (50 to 150 Hz)
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| Crosstalk |
Less
than -95 dB (1 kHz, typ); Less than -85 dB (20Hz to 5 kHz); Less than -75 dB (5 kHz to 20kHz) |
Ramp
Times
|
0.5
second delay; then: 3 seconds to 10 seconds
(UP and DOWN times individually adjustable on front panel)
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| Indicators
(10) |
Front-panel
LEDs indicating relative audio level (8), MAX condition (green),
MIN condition (red)
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| Audio
Outputs (2) |
150
Ohms balanced (may be connected unbalanced)
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Ramp
Output
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0 to
10 Vdc, (Ground-referenced)
Note: Not intended to drive additional VCA 0-10V inputs
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EQ
Ramp Output
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0 to
10 Vdc, (Ground-referenced)
Note: dc taper intended only to drive RDL Loudness EQ (ST-LEQ1)
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| Power Requirement |
GROUND REFERENCED, 24 Vdc at 120 mA
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| Ambient Operating Environment |
0C to 50C
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| Dimensions |
5.75" x 1.65" x 3.54" (3.9" with connectors)
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| Shipping Dimensions |
6.00" x 6.00" x 2.63" |
| Weight |
1.09 lbs
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| Shipping Weight |
1.34 lbs |
